6YAMAZAKI H,INUI Y,YUN C H,et al.Cytochrome P450 2E1 and 2A6enzymes as major catalysts for metabolic activation of N-nitrosodialkyla mines and tobacco-related nitrosa mines in human liver microsomes[J].Carcinogenesis,1992,13(10):1789-1794.
7BARTSCH H,MONTESANO R.Relevance of nitrosa mines to human cancer[J].Carcinogenesis,1984,5(11):1381-1393.
8BRYAN N S,ALEXANDER D D,COUGHLIN J R,et al.Ingested nitrate and nitrite and stomach cancer risk:an updated review[J].Food and Chemical Toxicology,2012,50(10):3646-3665.
9CHANWITHEESUK A,TEERAWUTGULRAG A,RAKARIYATHAM N.Screening of antioxidant activity and antioxidant compounds of some edible plants of Thailand[J].Food Chemistry,2005,92(3):491-497.
10ZAIDAN M R,NOOR RAIN A,BADRUL A R,et al.In vitro screening of five local medicinal plants for antibacterial activity using disc diffusion method[J].Trop Biomed,2005,22(2):165-170.